The pie charts illustrates the data on expenditure in an unknown country on a variety of activities in two different years of 2000 and 2010. The unit of measurement is percentage.
The following pie charts compare the total production of electricity using five different sources (wind, solar, nuclear, fossil fuels, and renewable) in 2015 and predict the changes in these sources in 2040.
The pie charts compare how online shopping trends among 20-to 30 years olds changed over a period of ten years in one region of the UK, between 20017 and 2017.
The two given pie charts depict information regarding seven categories of expenditures these are - food, cars, petrol, restaurants, furniture, computers, and books in the US over a period of 30 years, starting from 1966.
The pie charts below illustrates the percentage of 4 kinds of cars in British in the years of 1965, 1985 and 2005. It's obvious that most citizens in UK liked private cars, whereas the proportion of recreational vehicles